U.S. patent application number 17/473765 was filed with the patent office on 2022-05-05 for heat dissipation fin and heat dissipation module.
This patent application is currently assigned to ASROCK INC.. The applicant listed for this patent is ASROCK INC.. Invention is credited to Yi Kun Lin.
Application Number | 20220136784 17/473765 |
Document ID | / |
Family ID | |
Filed Date | 2022-05-05 |
United States Patent
Application |
20220136784 |
Kind Code |
A1 |
Lin; Yi Kun |
May 5, 2022 |
HEAT DISSIPATION FIN AND HEAT DISSIPATION MODULE
Abstract
A heat dissipation fin includes a body and an airflow guiding
structure. The body has a first surface and a second surface
opposite to each other and an airflow hole penetrating the first
surface and the second surface. The airflow guiding structure is
obliquely joined on the first surface of the body and covers part
of the airflow hole. An airflow passage is formed between the
airflow guiding structure and the first surface. Part of an airflow
is adapted to pass along the first surface through the airflow
passage to flow away. Part of the airflow passes in a direction
from the second surface through the airflow hole to flow away.
Inventors: |
Lin; Yi Kun; (Taipei City,
TW) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
ASROCK INC. |
Taipei City |
|
TW |
|
|
Assignee: |
ASROCK INC.
Taipei City
TW
|
Appl. No.: |
17/473765 |
Filed: |
September 13, 2021 |
International
Class: |
F28F 1/32 20060101
F28F001/32 |
Foreign Application Data
Date |
Code |
Application Number |
Oct 30, 2020 |
TW |
109137851 |
Claims
1. A heat dissipation fin, comprising: a body comprising a first
surface and a second surface opposite to each other and an airflow
hole penetrating the first surface and the second surface; and an
airflow guiding structure obliquely joined to the first surface of
the body and covering part of the airflow hole, wherein an airflow
passage is formed between the airflow guiding structure and the
first surface, part of an airflow is adapted to pass along the
first surface through the airflow passage, and part of the airflow
passes through the airflow hole from the second surface.
2. The heat dissipation fin according to claim 1, wherein an
extension direction of the airflow passage is perpendicular to an
axial direction of the airflow hole.
3. The heat dissipation fin according to claim 1, wherein two ends
of the airflow guiding structure are respectively joined to the
first surface located at two sides of the airflow hole, the airflow
guiding structure further comprises at least one first inclined
surface inclined relative to the body, the airflow guiding
structure comprises a first opening and a second opening opposite
to each other, the airflow passage is in communication with the
first opening and the second opening, the second opening is greater
than the first opening, and part of the airflow is adapted to pass
along the first surface via the first opening through the airflow
passage and flow away from the second opening.
4. The heat dissipation fin according to claim 3, wherein the
airflow guiding structure comprises at least one second inclined
surface inclined relative to the body, the at least one second
inclined surface is located between the body and the at least one
first inclined surface, and an inclination angle of the at least
one second inclined surface relative to the body is different from
an inclination angle of the at least one first inclined surface
relative to the body.
5. The heat dissipation fin according to claim 4, wherein the
inclination angle of the at least one second inclined surface
relative to the body is greater than the inclination angle of the
at least one first inclined surface relative to the body.
6. The heat dissipation fin according to claim 4, wherein the at
least one first inclined surface comprises two first inclined
surfaces, the at least one second inclined surface comprises two
second inclined surfaces, the two first inclined surfaces are
adjacent to each other, a ridge line is formed at a junction
between the two first inclined surfaces, and the two second
inclined surfaces are respectively located between the body and the
two first inclined surfaces and are respectively joined to the
first surface located at the two sides of the airflow hole.
7. The heat dissipation fin according to claim 4, wherein the body
comprises a plurality of heat pipe through holes, the heat pipe
through holes are vertically alternately disposed into two rows,
and the airflow hole and the airflow guiding structure are located
below at least one of the heat pipe through holes in an upper
row.
8. The heat dissipation fin according to claim 7, wherein a
plurality of heat pipes are adapted to be disposed in the heat pipe
through holes and arranged into a first row located above and a
second row located below, and part of the airflow is adapted to
flow from beside the heat pipes located in the first row along the
at least one second inclined surface to the heat pipes located in
the second row.
9. A heat dissipation module, comprising: a plurality of heat
dissipation fins disposed side by side, each of the heat
dissipation fins comprising: a body comprising a first surface and
a second surface opposite to each other and an airflow hole
penetrating the first surface and the second surface; and an
airflow guiding structure obliquely joined to the first surface of
the body and covering part of the airflow hole, wherein an airflow
passage is formed between the airflow guiding structure and the
first surface, wherein the airflow hole of one of the heat
dissipation fins corresponds to the airflow hole of another one of
the heat dissipation fins, and wherein in any adjacent two of the
heat dissipation fins, the two heat dissipation fins are
distinguished into a first fin and a second fin, the airflow
guiding structure of the second fin is located between the second
surface of the first fin and the first surface of the second fin,
part of an airflow located between the first fin and the second fin
is adapted to pass along the first surface of the second fin
through the airflow passage of the airflow guiding structure of the
second fin, and part of the airflow passes through the airflow hole
of the first fin from the second surface of the first fin.
10. The heat dissipation module according to claim 9, wherein the
airflow guiding structure of the second fin is extended into the
airflow hole of the first fin.
11. The heat dissipation module according to claim 9, wherein an
extension direction of the airflow passage is perpendicular to an
axial direction of the airflow hole.
12. The heat dissipation module according to claim 9, wherein two
ends of the airflow guiding structure are respectively joined to
the first surface located at two sides of the airflow hole, the
airflow guiding structure further comprises at least one first
inclined surface inclined relative to the body, the airflow guiding
structure comprises a first opening and a second opening opposite
to each other, the airflow passage is in communication with the
first opening and the second opening, the second opening is greater
than the first opening, and part of the airflow is adapted to pass
along the first surface via the first opening through the airflow
passage and flow away from the second opening.
13. The heat dissipation module according to claim 12, wherein the
airflow guiding structure comprises at least one second inclined
surface inclined relative to the body, the at least one second
inclined surface is located between the body and the at least one
first inclined surface, and an inclination angle of the at least
one second inclined surface relative to the body is different from
an inclination angle of the at least one first inclined surface
relative to the body.
14. The heat dissipation module according to claim 13, wherein the
inclination angle of the at least one second inclined surface
relative to the body is greater than the inclination angle of the
at least one first inclined surface relative to the body.
15. The heat dissipation module according to claim 13, wherein the
at least one first inclined surface comprises two first inclined
surfaces, the at least one second inclined surface comprises two
second inclined surfaces, the two first inclined surfaces are
adjacent to each other, a ridge line is formed at a junction
between the two first inclined surfaces, and the two second
inclined surfaces are respectively located between the body and the
two first inclined surfaces and are respectively joined to the
first surface located at the two sides of the airflow hole.
16. The heat dissipation module according to claim 13, wherein the
body of each of the heat dissipation fins comprises a plurality of
heat pipe through holes, the heat pipe through holes are vertically
alternately disposed into two rows, and the airflow hole and the
airflow guiding structure are located below at least one of the
heat pipe through holes in an upper row.
17. The heat dissipation module according to claim 16, further
comprising a plurality of heat pipes disposed in the heat pipe
through holes and arranged into a first row located above and a
second row located below, wherein part of the airflow is adapted to
flow from beside the heat pipes located in the first row along the
at least one second inclined surface to the heat pipes located in
the second row.
Description
CROSS-REFERENCE TO RELATED APPLICATION
[0001] This application claims the priority benefit of Taiwanese
application no. 109137851, filed on Oct. 30, 2020. The entirety of
the above-mentioned patent application is hereby incorporated by
reference herein and made a part of this specification.
BACKGROUND
Technical Field
[0002] The disclosure relates to a heat dissipation fin and a heat
dissipation module; particularly, the disclosure relates to a heat
dissipation fin and a heat dissipation module with improved heat
dissipation efficiency.
Description of Related Art
[0003] Heat dissipation by utilizing heat dissipation fins combined
with a fan may already be a relatively common means. In the
conventional heat dissipation structure, airflow blown by the fan
flows through the heat dissipation fins, and heat energy of the
heat dissipation fins is taken away. Gaps between the heat
dissipation fins form flow passages for airflow, and the flow
passages would be of the length of the entire fin. After an airflow
passes through heat pipes disposed through the heat dissipation
fins, temperature of the airflow is increased quickly. In addition,
the high-temperature airflow may still require to pass through the
flow passages before being discharged. Therefore, heat energy is
likely to be accumulated in the flow passages, affecting heat
dissipation efficiency.
SUMMARY
[0004] The disclosure provides a heat dissipation fin with improved
heat dissipation efficiency.
[0005] The disclosure provides a heat dissipation module including
the above-mentioned heat dissipation fin.
[0006] In the disclosure, a heat dissipation fin includes a body
and an airflow guiding structure. The body includes a first surface
and a second surface opposite to each other and an airflow hole
penetrating the first surface and the second surface. The airflow
guiding structure is obliquely joined to the first surface of the
body and covers part of the airflow hole. An airflow passage is
formed between the airflow guiding structure and the first surface.
Part of an airflow is adapted to pass along the first surface
through the airflow passage, and part of the airflow passes through
the airflow hole from the second surface.
[0007] In an embodiment of the disclosure, an extension direction
of the airflow passage is perpendicular to an axial direction of
the airflow hole.
[0008] In an embodiment of the disclosure, two ends of the airflow
guiding structure are respectively joined to the first surface
located at two sides of the airflow hole. The airflow guiding
structure further includes at least one first inclined surface
inclined relative to the body. The airflow guiding structure
includes a first opening and a second opening opposite to each
other. The airflow passage is in communication with the first
opening and the second opening. The second opening is greater than
the first opening. Part of the airflow is adapted to pass along the
first surface via the first opening through the airflow passage and
flow away from the second opening.
[0009] In an embodiment of the disclosure, the airflow guiding
structure includes at least one second inclined surface inclined
relative to the body. The at least one second inclined surface is
located between the body and the at least one first inclined
surface. An inclination angle of the at least one second inclined
surface relative to the body is different from an inclination angle
of the at least one first inclined surface relative to the
body.
[0010] In an embodiment of the disclosure, the inclination angle of
the at least one second inclined surface relative to the body is
greater than the inclination angle of the at least one first
inclined surface relative to the body.
[0011] In an embodiment of the disclosure, the at least one first
inclined surface includes two first inclined surfaces, and the at
least one second inclined surface includes two second inclined
surfaces. The two first inclined surfaces are adjacent to each
other, and a ridge line is formed at a junction between the two
first inclined surfaces. The two second inclined surfaces are
respectively located between the body and the two first inclined
surfaces and are respectively joined to the first surface located
at the two sides of the airflow hole.
[0012] In an embodiment of the disclosure, the body includes a
plurality of heat pipe through holes. The heat pipe through holes
are vertically alternately disposed into two rows. The airflow hole
and the airflow guiding structure are located below at least one of
the heat pipe through holes in an upper row.
[0013] In an embodiment of the disclosure, a plurality of heat
pipes are adapted to be disposed in the heat pipe through holes and
arranged into a first row located above and a second row located
below. Part of the airflow is adapted to flow from beside the heat
pipes located in the first row along the at least one second
inclined surface to the heat pipes located in the second row.
[0014] In the disclosure, a heat dissipation module includes the
above-mentioned heat dissipation fins, disposed side by side. The
airflow hole of one of the heat dissipation fins corresponds to the
airflow hole of another one of the heat dissipation fins. In any
adjacent two of the heat dissipation fins, the two heat dissipation
fins are distinguished into a first fin and a second fin. The
airflow guiding structure of the second fin is located between the
second surface of the first fin and the first surface of the second
fin. Part of an airflow located between the first fin and the
second fin is adapted to pass along the first surface of the second
fin through the airflow passage of the airflow guiding structure of
the second fin. Part of the airflow passes through the airflow hole
of the first fin from the second surface of the first fin.
[0015] In an embodiment of the disclosure, the airflow guiding
structure of the second fin is extended into the airflow hole of
the first fin.
[0016] Based on the foregoing, in the conventional heat dissipation
structure, the high-temperature airflow heated because of passing
through the heat pipe may still require to flow through the gaps
between the fins before being discharged from the end of the fins,
and since the flow passages are longer, heat dissipation efficiency
may be affected. Compared with the conventional heat dissipation
structure, in the disclosure, the body of the heat dissipation fin
has the airflow hole for the airflow to directly leave from the
airflow hole, reducing the length of the flow passage and improving
heat dissipation efficiency. In addition, since the airflow guiding
structure is obliquely joined to the body and covers part of the
airflow hole, in the design of the airflow guiding structure
combined with the airflow passage and the airflow hole, the airflow
may be guided by the airflow guiding structure to flow in the
direction away from the fin. By spreading the directions of
airflow, heat dissipation efficiency is then improved. Similarly,
in the heat dissipation module of the disclosure, part of the
airflow located between the first fin and the second fin is adapted
to flow away along the airflow passage of the airflow guiding
structure. In addition, part of the airflow pass through the
airflow hole of the first fin from the second surface of the first
fin, and flow outward in the direction away from the first surface
of the first fin. As such, the airflow may be directly discharged
in the lateral direction to increase heat dissipation
efficiency.
[0017] To make the aforementioned more comprehensible, several
embodiments accompanied with drawings are described in detail as
follows.
BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The accompanying drawings are included to provide a further
understanding of the disclosure, and are incorporated in and
constitute a part of this specification. The drawings illustrate
exemplary embodiments of the disclosure and, together with the
description, serve to explain the principles of the disclosure.
[0019] FIG. 1 is a schematic view of a heat dissipation module
according to an embodiment of the disclosure.
[0020] FIG. 2 is a partial enlarged view of FIG. 1.
[0021] FIG. 3 is a schematic partial cross-sectional view along
line A-A of FIG. 1.
[0022] FIG. 4 is a schematic partial view of a heat dissipation fin
of the heat dissipation module of FIG. 1.
[0023] FIG. 5 is a schematic view of a heat dissipation fin
according to another embodiment of the disclosure.
DESCRIPTION OF THE EMBODIMENTS
[0024] FIG. 1 is a schematic view of a heat dissipation module
according to an embodiment of the disclosure. FIG. 2 is a partial
enlarged view of FIG. 1. FIG. 3 is a schematic partial
cross-sectional view along line A-A of FIG. 1. FIG. 4 is a
schematic partial view of a heat dissipation fin of the heat
dissipation module of FIG. 1.
[0025] With reference to FIG. 1 to FIG. 4, in this embodiment, a
heat dissipation module 10 includes a plurality of heat dissipation
fins 100 and a plurality of heat pipes 12. The heat dissipation
fins 100 are disposed side by side, and the heat pipes 12 are
disposed through the heat dissipation fins 100. In this embodiment,
the heat dissipation fins 100 are specially designed and achieve
fast heat discharge, which will be described in the following.
[0026] In this embodiment, the heat dissipation fin 100 includes a
body 110 and an airflow guiding structure 120. As shown in FIG. 3,
the body 110 has a first surface 112 and a second surface 114
opposite to each other and an airflow hole 116 penetrating the
first surface 112 and the second surface 114.
[0027] As shown in FIG. 4, the airflow guiding structure 120 is
obliquely joined to the first surface 112 of the body 110. In this
embodiment, the airflow guiding structure 120 is joined to the
first surface 112 of the body 110 located at two sides of the
airflow hole 116.
[0028] The airflow guiding structure 120 covers part of the airflow
hole 116. In this embodiment, the airflow guiding structure 120
covers, for example, more than half of the area of the airflow hole
116. For example, the airflow guiding structure 120 covers 40% to
80% of the airflow hole 116. After testing, such a design shows
good performance.
[0029] In addition, as shown in FIG. 3, an airflow passage 125 is
formed between the airflow guiding structure 120 and the first
surface 112. The airflow guiding structure 120 has a first opening
122 and a second opening 124 opposite to each other. The airflow
passage 125 is in communication with the first opening 122 and the
second opening 124. The first opening 122 is, for example, an upper
opening closer to the position where an airflow enters. The second
opening 124 is, for example, a lower opening closer to the position
where the airflow leaves. Nonetheless, the relative positions of
the first opening 122 and the second opening 124 are not limited
thereto. In addition, an axial direction D1 of the airflow hole 116
is perpendicular to an extension direction D2 of the airflow
passage 125.
[0030] Moreover, as shown in FIG. 3, the airflow guiding structure
120 also includes at least one first inclined surface 126 inclined
relative to the body 110. In this embodiment, the first inclined
surface 126 is inclined downward, such that the second opening 124
is greater than the first opening 122. The first inclined surface
126 may be configured to guide the flow direction of part of the
airflow, such that part of the airflow may flow downward along the
first inclined surface 126 and in a direction away from the first
surface 112.
[0031] As shown in FIG. 4, in this embodiment, the airflow guiding
structure 120 also has at least one second inclined surface 128
inclined relative to the body 110. The at least one second inclined
surface 128 is located between the body 110 and the at least one
first inclined surface 126. The inclination angle of the at least
one second inclined surface 128 relative to the body 110 is
different from the inclination angle of the at least one first
inclined surface 126 relative to the body 110. Specifically, in
this embodiment, the inclination angle of the second inclined
surface 128 relative to the body 110 is greater than the
inclination angle of the first inclined surface 126 relative to the
body 110. In this embodiment, the second inclined surface 128 has a
relatively great slope and makes the airflow guiding structure 120
further protrude from the first surface 112 of the body 110, such
that there may exist a relatively great space between the airflow
guiding structure 120 and the body 110 for an airflow to pass
through.
[0032] In this embodiment, the airflow guiding structure 120 is
exhibited in a V-shape. The at least one first inclined surface 126
includes two first inclined surfaces 126, and the at least one
second inclined surface 128 includes two second inclined surfaces
128. The two first inclined surfaces 126 are adjacent to each
other, and a ridge line 129 is formed at the junction between the
two first inclined surfaces 126. The two second inclined surfaces
128 are respectively located between the body 110 and the two first
inclined surfaces 126 and are respectively joined to the first
surface 112 located at two sides of the airflow hole 116.
Naturally, the form and shape of the airflow guiding structure 120
are not limited thereto.
[0033] Notably, in this embodiment, the first inclined surface 126
and the second inclined surface 128 are each an inclined surface.
Nonetheless, in other embodiments, the inclined surface of the
airflow guiding structure 120 may as well be a cambered surface,
which is not limited by the drawings.
[0034] In this embodiment, the airflow guiding structure 120 and
the body 110 are integral. Manufacturers may manufacture the
airflow guiding structure 120 and the airflow hole 116 at the same
time by stamping. In other embodiments, the airflow guiding
structure 120 and the body 110 may as well be two elements
manufactured separately and then assembled together.
[0035] With reference back to FIG. 1, the body 110 of each heat
dissipation fin 100 includes a plurality of heat pipe through holes
118. The heat pipes 12 are disposed through the heat pipe through
holes 118. The heat pipe through holes 118 are vertically
alternately disposed into two rows, namely a first row 14 located
relatively above and a second row 16 located relatively below. In
this embodiment, the airflow hole 116 and the airflow guiding
structure 120 are located below the heat pipe through holes 118 in
the first row 14.
[0036] In addition, from FIG. 2 combined with FIG. 4, two outer
contours of the two second inclined surfaces 128 are respectively
inclined to the left and to the right. Part of an airflow F1 may be
guided to move from beside the heat pipes 12 in the first row 14
along the outer contours of the two second inclined surfaces 128 to
the lower left and to the lower right, and flow toward the heat
pipes 12 in the second row 16 to lower the temperature of the heat
pipes 12 in the second row 16.
[0037] The heat dissipation module 10 of the embodiment may be
disposed on a heat source (e.g., a central processing unit or a
display chip, not shown), and the heat pipes 12 are thermally
coupled to the heat source. Therefore, heat energy emitted by the
heat source are conducted to the heat pipes 12 and then conducted
to the heat dissipation fin 100. A fan may be disposed above the
heat dissipation fin 100. An airflow blown by the fan flows between
the heat dissipation fins 100 and takes away the heat energy of the
heat dissipation fins 100.
[0038] Accordingly, in the heat dissipation module 10, the heat
pipes 12 have the highest temperature. In the heat dissipation fins
100, the portion close to the heat pipe 12 has the higher
temperature. When the airflow is blown from the top to the bottom,
the relatively low temperature of the airflow is increased quickly
after the airflow passes through the heat pipe 12. In the
conventional structure, the high-temperature airflow may require to
pass through gaps between the fins before being discharged from the
tips (e.g., the lower ends) of the fins. Since the flow passages
are relatively long, heat dissipation efficiency may be
affected.
[0039] From FIG. 2 combined with FIG. 4, it can be observed that,
in this embodiment, part of an airflow F2 passes through the heat
pipe 12 in the first row along the first surface 112 via the first
opening 122 through the airflow passage 125, and flows away from
the second opening 124. In addition, part of the airflow passes
through the airflow hole 116 from the second surface 114 to flow
away from the first surface 112. Accordingly, the high-temperature
airflow first flows outward from the airflow passage 125 and the
airflow hole 116 in the lateral direction, and does not require to
flow through the entire heat dissipation fin 100 before being
discharged from the lower end of the heat dissipation fin 100,
which effectively improves heat dissipation.
[0040] With reference to FIG. 3, in the heat dissipation module 10
of this embodiment, the airflow holes 116 of the heat dissipation
fins 100 are in communication and correspondence with each other.
In any adjacent two of heat dissipation fins 100 (the leftmost two
heat dissipation fins 100 are taken as an example in FIG. 3, but
any two adjacent heat dissipation fins 100 may be distinguished as
such), the two heat dissipation fins 100 may be distinguished into
a first fin 101 and a second fin 102. The airflow guiding structure
120 of the second fin 102 protrudes toward the first fin 101 and is
located between the second surface 114 of the first fin 101 and the
first surface 112 of the second fin 102.
[0041] The airflow flowing between the first fin 101 and the second
fin 102 (the airflow located beside the first surface 112 of the
second fin 102) flows along the gap between the first surface 112
of the second fin 102 and the second surface 114 of the first fin
101. Since the airflow guiding structure 120 of the second fin 102
is located between the first fin 101 and the second fin 102, part
of the airflow flows along the first surface 112 of the second fin
102 into the first opening 122 of the airflow guiding structure 120
of the second fin 102, and passes through the airflow passage 125
to flow outward from the second opening 124. Since the airflow
guiding structure 120 is obliquely disposed slightly outward
relative to the body 110, during the process of flowing along the
inside of the airflow guiding structure 120, the airflow in the
airflow guiding structure 120 gradually changes its direction and
flows in the direction away from the first surface 112 of the
second fin 102, namely in the direction toward the second surface
114 of the first fin 101. After that, the airflow flows outward of
the second opening 124 and passes through the airflow hole 116 of
the first fin 101, and flows outward in the direction away from the
first surface 112.
[0042] For the first fin 101, the airflow located beside the second
surface 114 of the first fin 101 may pass along the first inclined
surface 126 and second inclined surface 128 of the airflow guiding
structure 120 of the second fin 102 through the airflow hole 116 of
the first fin 101 and flow out of the first surface 112 of the
first fin 101.
[0043] Notably, in any adjacent two of the heat dissipation fins
100, the airflow guiding structure 120 of one of the heat
dissipation fins 100 is extended into the airflow hole 116 of the
other of the heat dissipation fins 100. Specifically, in this
embodiment, the airflow guiding structure 120 of the second fin 102
is extended into the airflow hole 116 of the first fin 101. Such a
design may increase the probability of the airflow passing through
the airflow hole 116 of the first fin 101 and flowing outward from
the first surface 112 of the first fin 101. Naturally, in other
embodiments, it is also possible that the airflow guiding structure
120 of the second fin 102 is not extended into the airflow hole 116
of the first fin 101. The disclosure is not limited thereto.
[0044] FIG. 5 is a schematic view of a heat dissipation fin
according to another embodiment of the disclosure. With reference
to FIG. 5, in this embodiment, the airflow guiding structure 120
may also be presented in an asymmetric structure. For example, the
airflow guiding structure 120 may include a first inclined surface
126, a single second inclined surface 128, and a cambered surface
part 130. The number of the first inclined surface 126 and the
number of the second inclined surface 128 are not limited.
[0045] In summary of the foregoing, in the conventional heat
dissipation structure, the high-temperature airflow heated by the
heat pipe may still require to flow through the gaps between the
fins before being discharged from the end of the fins, and since
the flow passages are longer, heat dissipation efficiency may be
affected. Compared with the conventional heat dissipation
structure, in the disclosure, the body of the heat dissipation fin
has the airflow hole for the airflow to directly leave from the
airflow hole, reducing the length of the flow passage and improving
heat dissipation efficiency. In addition, since the airflow guiding
structure is obliquely joined to the body and covers part of the
airflow hole, in the design of the airflow guiding structure
combined with the airflow passage and the airflow hole, the airflow
may be guided by the airflow guiding structure to flow in the
direction (lateral direction) away from the first surface to
increase the ratio of airflow flowing out in the lateral direction
and then improve heat dissipation efficiency. Similarly, in the
heat dissipation module of the disclosure, part of the airflow
located between the first fin and the second fin is adapted to flow
along the airflow guiding structure of the second fin, pass through
the airflow hole of the first fin, and flow outward from the first
surface of the first fin. As such, the airflow may be directly
discharged in the lateral direction to increase heat dissipation
efficiency.
[0046] It will be apparent to those skilled in the art that various
modifications and variations can be made to the disclosed
embodiments without departing from the scope or spirit of the
disclosure. In view of the foregoing, it is intended that the
disclosure covers modifications and variations provided that they
fall within the scope of the following claims and their
equivalents.
* * * * *